首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
In the 90’s.people went crazy about wireless.Electronic communications once thought bound pennanently to the world of cables and
In the 90’s.people went crazy about wireless.Electronic communications once thought bound pennanently to the world of cables and
admin
2015-03-02
14
问题
In the 90’s.people went crazy about wireless.Electronic communications once thought bound pennanently to the world of cables and hard wired connections suddenly were sprung free,and the possibilities seemed endless.Entrenched monopolies would fall,and a new uncabled era would usher in a level of intimate contact that would not only transform business but change human behavior. Such was the view by the end of that groundbreaking decade--the 1 890s.
To be sure the wild publicity of those days wasn’t all hot air.Marconi’s“magic box”and its contemDoraneous inventions kicked off an era of profound changes, not the least of which was the advent of broadcasting.So it does seem strange that a century later,the debate once more is about how wireless will change everything.And once again,the noisy confusion is justified Changes are on the way that are arguably as earth shattering as the world’s first wireless transformation.
Certainlv a huge part of this revolution comes from introducing the most powerful communication tools of our time Between our mobile phones,our BlackBerries and Treos,and our Wi—Fi(Wireless Fidelitv)computers,we’re always on and always connected and soon our cars and our appliances will be too.While there has been considerable planning for how people will use these tools and how they,U pay for them,the wonderful reality is that,as with theInternet,much of the action in the wireless worid will uhimatelv emerge from the imaginative twists and turns that are possible when digital technology trumps the analog mindset of telecom companies and government regulators•
Wi-Fi is itseIf a shining exampie of how wireless innovation can shed the tethers of conventional wisdom. At one point, it was assumed that when people wanted to use wireless devices for things other than convrsation.they’d have to rely on the painstakingly drawn,investment-heavy standards adopted by the giant corporations that earn a lot through your monthly phone bill. But then some researchers came up with a new communications standard exploiting an unlicensed part of the spectrum.It was called 802.1 1.and only later sexed up with the name Wi—Fi.
Though the range of signal was only some dozens of meters Wi-Fi turned out to be a great way to wirelessly extend an Intemet connection in the home or office A new class of activist was born:the bandwidth liberator.with a goal of extending free wireless Internet to anyone ventunng within the range of a free hotspot. Meanwhile,Apple Computer seized on the idea as a consumer solution,others foilowed and now Wi-Fi is as common as the modem once was.
From the author’s point of view,the Wi—Fi technology will___________.
选项
A、be replaced soon
B、be controlled by giant corporations like Apple
C、extend to every home and office
D、become a necessity as a modem
答案
D
解析
事实细节题。本题是对wi—Fi技术前景的判断。前文讲了wi—Fi技术的产生和发展,对前景的预测会在文章末尾出现,由末句“now Wi—Fi is as common as the modem once was.”可知D项为答案;A项在文中没有提及,故排除;倒数第一句提到“Apple Cornpurer seized 0n the。idea as a consumer solution”可知Apple用wi—Fi技术为用户提供解决方案,没有提到B项,排除;C项过于绝对,排除。
转载请注明原文地址:https://kaotiyun.com/show/Gwna777K
本试题收录于:
艺术硕士(艺术基础)题库专业硕士分类
0
艺术硕士(艺术基础)
专业硕士
相关试题推荐
1986年2月,我国开办了()业务。
以下对于通货膨胀度量方法的衡量与评价当中,不属于消费物价指数CPI的优点的是()。
资本资产定价模型的基本假设是什么?该模型的主要内容及其一般表达式是什么?[暨南大学2016研]
美国地方政府发行的市政债券的利率低于联邦政府债券,其原因可能是()。[对外经济贸易大学2013研]
外汇市场有两大组成部分:场内市场和场外市场组成,大多数外汇交易活动在场内市场进行,场内市场由商业银行、投资银行、证券交易市场等组成。
在LAC曲线下降的阶段,LAC是SAC最低点的连线。()
结合具体作品,谈谈作品的艺术性和商业性的关系。
ProfessorSmithrecentlypersuaded35people,23ofthemwomen,tokeepadiaryofalltheirabsent-mindedactionsforafortnig
In1999whenMiShelandCarlMeissnerdecidedtohavechildren,theytackledthenextbigissue:Shouldtheytrytohaveagirl?
Theriseofmultinationalcorporations(跨国公司),globalmarketing,newcommunicationstechnologies,andshrinkingculturaldiffere
随机试题
提取挥发油最常用的超临界流体是
男性。60岁。近日出现上腹不适,疼痛,进食后加重,消瘦、贫血。应高度警惕的是
“生气之源”的脏指的是()。
下列贷款中,不属于房地产开发贷款的是()。
关于事业单位无形资产的处置,下列会计处理中,错误的是()。
关于广播广告中的间隙的描述正确的是()。
Themeasureofaman’srealcharacteriswhathewoulddoifheknewhewouldneverbefoundout.—ThomasMacaulaySomethir
公文中应使用法定计量单位,还要保持计量单位的()性。
【宋学】中国人民大学2005年中国通史真题;陕西师范大学2016年中国史真题
阅读下列说明和图,回答以下问题,将解答填入答题纸的对应栏内。【说明】某电子商务系统采用以数据库为中心的集成方式改进购物车的功能,详细需求如下:1.加入购物车。顾客浏览商品,点击加入购物车,根据商品标识从商品表中读取商品信息,并
最新回复
(
0
)